Pemberton is a noted voice actress and singer and, since 2016, she has co-starred with Arthur Darvill in the TV series DC's Legends of Tomorrow in which she provides the voice of Gideon, a semi-sentient AI. In the 2017 episode "Land of the Lost", she played a physical avatar of Gideon in similar fashion to how the Doctor's TARDIS was portrayed in TV: "The Doctor's Wife".